Extension and roof for silos.



S. 0. NAFZIGER.

- EXTENSION AND ROOF FOR s!L0s APPLICATION FILED SEPT-25. 1915.

Patented June 13', 1916.

2 SHEETS SHEET I.

javentor:

"w" I; F witnesses:

I fi m S. 0. NAFZIGER. EXTENSION AND ROOF FOR SILOS. APPUCATION FILEDSEPT.25. 19l5.

b 1 9 V 1 0O 1 6 n u d d an t n e ATL a D1 UNTTE SAMUEL O. NAFZIGER, OFGOSHEN, INDIANA.

EXTENSION AND ROOF FOR SILOS.

Application filed September 25, 1915.

To all whom it may concern:

Be it known that I, SAMUEL O. NAFZIGER, a citizen of the United States,residing at Goshen, in the county of Elkhart and State of Indiana, haveinvented certain new and useful Improvements in Extensions and Roofs forSilos, of which the following 1s a specification.

My invention relates to silos, particularly to an extension roof forsilos, and has for its object the provision of a device of thischaracter which can be attached to any silo and which will extendvertically upward when employed as an extension forming a cylindricalcasing; and when collapsed to form a roof will form a conical waterexcluding covering; the component parts of the device.

being securely held together whether in the extended or collapsedposition. I

An important object is to provide means whereby the parts of the devicewill be eflectually braced and supported at all times.

Another object is the provision of means for simultaneously raising allparts of the roof to their vertically extended position.

With these and various other objects in view, such as means for guidingthe sections together when descending toform a roof, together with thenovel hinging means used, in addition to the features of simplicity,durability, and efliciency, my invention consists in the novelconstruction and arrangement of parts, hereinafter described andillustrated in the accompanying drawings, in which:

Figure 1 is a side view of my device extended, Fig. 2 shows the devicecollapsed to form a conical roof, Fig. 3 is a side view of the devicewith the front portion removed, Fig. 1 is a detail view of the cap shownin Fig. 2, and Figs. 5, 6, 7 and 8 are detail views.

Referring more particularly to the draw ings, the numeral 1 designates acircular supporting base for my device. A plurality of pieces of strapiron 2 are riveted or otherwise secured to the base 1 at equally spaceddistances, the tops of said pieces extending above the base and havingapertures 3 formed in the extended portion.

A plurality of roof sections 4t are hingedly mounted on said base byhook bolts 5, shown in Fig. 5. Each of the roof sections comprises onepiece of material formed into triangular parts 6 and 7. The triangularpart Ghas its narrowest portion at the top. The

Specification of Letters Patent.

Patented June 13, 1916.

Serial No. 52,600.

Y which the girder support 10 is secured. The

triangular part 7 has its small end adjacent to the widest portion ofpart 6 or its bottom. The free end of the part 7 is curved slightlyinward as at 11 to prevent it from striking the. girder 10 in theadjacentroof section.

The roof sections are kept from spreading at their lower ends byconnecting braces 12 rlgidly secured to the part 6 of one section andhaving a slot 13 in their free end. The free ends of these braces aresecured to the part 6 of the adjacent roof section by the hook bolts 5which'form the hinges for the roof sections 4. The hook bolts 5 passthrough the apertures 3 in strap irons 2 and are further passed throughthe angle irons forming the girders 10 and thence through the, slots 13in the braces 12 forming a flexible and secure hinge. The roof sections4 are further braced by sliding braces 14 comprising a bar portion 15and a receiving portion 16, as shown in Fig. 1. The bar 15 is secured tothe part 6 of one roof section 4% and the receiving portion 16 issecured to the part 6 of the adjacent roof section.

Guide members 17 are secured adjacent the top of the part 6 of the roofsections, as shown in Fig. 7. A bracket 18 is secured to one of thegirders 10, and a tubular guide member 19 is secured to the bracket.A'conical cap 20 is secured to supports 21 on a tubular post 22 havingan opening 23 in its lower end. The tubular post 22 is adapted to beinserted in the guide member 19. v

Strap iron members 241, shown in Fig. 5, are secured to the lower endsof the girders '10 and have their free ends 25 bent V- shaped. Pulleys26 are secured to the V- shaped portions 25 of the members 24.

A member 27 is hingedly secured at its upper end to the base 1 and has aset of P111- leys 28 secured thereto near its lower end. A second pairof pulleys 29 are. secured, one at each side of the member 27, directlyto the base 1.

A cable 30 is passed through all of the pulleys 26 and its ends arepassed through the pulleys 28 and 29 and then secured together forming aloop 31. A cable 32 issecured in the opening 23 in the post 22 and thenpassed through pulleys 33 and 34 on the bracket 18 and then it is passedunder the roof at 35 and secured to the cable 30. A third cable 36 issecured to the loop 31 and passes down to the ground.

A cable hoop 38 is secured to the part 6 of the roof sections 4 toprevent the sections from spreading.

The operation of the device is as follows: The base 1 is set on the topof any ordinary silo wall and the roof sections 4 are secured to thebase by the hook bolts 5 and the braces and guides are then assembledand the cables 30 and 32 are passed through their respective pulleys andthe cable 36 is then attached to the loop 31 in the cable 30. V Thedevice is then in its operative position and assembled. To raise theroof sections to act as an extension to the silo wall,

all that is necessary is to pull on the cable 36 and this will firstraise the cap 20 and leave the sections l of the roof free to rise andform the extension. Further pulling on the cable 36 will then raise theroof sections. After the roof sections are raised the cable 36 issecured in any desired manner. sary to release the cable 36 when theywill fall into the position shown in Fig. 2.

Having thus described my invention what I- claim is said base, a portionof each of said roof sections being raised in the formpf atriangle, theinner edge of said portion forming an offset in which a supportinggirder is secured, the outer edge of said portion being bent upon itselfto form a three ply support, and all of said roof sections being adaptedto overlap and form a conical roof.

'3. A combined extension and roof for silos comprising a base, aplurality of rectangular roof sections hingedly secured to 1 said base,a portion of said sections being raised in the form of a triangle, agirder Copies ofthis patent may be obtained for To lower the sections itis only neces-- along the inner. edge of said portion, extensionssecured on said girders, said extensions being V-shaped, pulleys securedto A. 'A' combined extension and roof for.

silos comprising a base, a plurality of roof sections hingedly securedto said base, girders secured to each of said roof sections, a

bracket adjacent the top of one of said gird ers, a tubular guide membersecured to said bracket, a post slidably mounted in said guide member, aconical cap secured to said post, and means for raising said cap andsaid roof sections simultaneously.

5. A combined extension and roof for silos comprising a base, aplurality of roof sections hingedly secured to said base, girderssecured to each of said ro'of sections, a bracket adjacent the top ofone of said girders, a tubular guide membersecured to said bracket, apost slidably mounted in said guide member, a conical cap secured tosaid post, and means for raising said cap and said roof sectionssimultaneously, said means comprising a plurality of V-shaped extensionssecured to said girders, pulleys secured to said extensions, otherpulleys secured to said 'base, a cable passed through all of saidpulleys, and a plurality of pulleys secured to said bracket, a cablesecured to the lower end of said post and passed through said last namedpulleys and secured to said first named cable.

'6. A combined extension and roof for silos comprising a base, aplurality of roof sections hingedly secured to said base, parts 7 ofsaid roof sections being raised in the-form of a triangle, means forsimultaneously raising said'roof sections, and means for pre ventingsaid roof sections from spreading when in their extended position, saidmeans comprising sliding braces adjacent the bottoms of said roofsections and a flexible hoop secured to said raised portion of each roofsection. l I In testimony whereof I hereto, aflix my signature in thepresence of two witnesses.

SAMUEL o. .NAFZIGER.

five cents each, by addressing the Commissioner of Patents, Washington,I). G.

